I had sarcoma 9 years ago and I have a lump in my lower back?

I had sarcoma 9 years ago, I recently discovered a solid lump in the 1.5cm lumbar region, what does that mean?
Expert answer:

For now it's just a lump in the lumbar region, after you go to the doctor and maybe remove the lump (if necessary) and take the exam to see what that lump is, we'll know what that means.